doesn't have / has not - English Grammar - English - The Free ...
2013年5月26日 · He is not driving a car. He has driven a car. He has not driven a car. If the verb 'to have' is in the perfect tense, then one 'have' is the auxiliary... he has a car. (present) He does not have a car (present negative using auxiliary 'do'. He has had a car (perfect tense) He has not had a car (negative using auxiliary 'have'.
She has a cat, doesn't/hasn't she? - English Grammar - English
2017年1月15日 · Here 'has' is auxiliary. A tag question is a negative question. For both of those reasons, it uses the auxiliary. You know when you form a negative, or question, you use the auxiliary. She has not seen the cat. Has she seen the cat? And if there is no auxiliary verb, you have to add one to make the negative: She sees a cat. She does not see a cat.
That problem has not been solved for a long time.
2015年10月8日 · - The problem has not solved a long time. (This is wrong.) - The problem has not been solved a long time. (The use of "been" makes the structure grammatically correct. Its use is a must) Combining the two clauses leads to the sentence: - The problem has existed a long time but not yet been solved.
collected or have collected - English Grammar - English - The Free ...
2018年8月1日 · It depends how much you want to connect it to the present (it has happened in the last few days, and everything is still true) or you want to place it in the past (anything from an hour ago to ten years ago - and it might have changed since then). It is not about the amount of time, but the connection you want to make to the present.
chosen to not vs chosen not to - English Grammar - The Free …
2017年3月27日 · The person has made a decision - and the decision is negative "No, I am not going to complain." A complaint will not be made. However, there is a third variation with a different meaning. "The other student has not chosen to make a complaint about your behaviour." This means that no decision has been made - neither 'yes' nor 'no'.
issue or problem; fixed or resolved - English Grammar - English
2013年10月17日 · It has another meaning - "A point of discussion, concern or complaint" - and even has a meaning "final result or conclusion, as a solution to a problem". It does not mean "problem". If there is actually something wrong with the e-mail system, then it is a problem.
Has yet to be solved or has permanently to be solved?
2016年4月20日 · The team has yet to be beaten this season. I have yet to be injured in a car crash. - it has not happened. If it were in another place in the sentence, you could insert 'permanently'. It would then have meaning 2 You can put it before or after the participle. It has to be permanently resolved. it has to be resolved permanently. - it must be ...
have or has? - English Grammar - English - The Free Dictionary
2011年12月31日 · and "My experience, gained during three years, has helped me to ..." sound OK, but not quite so natural as 'over'. "My experience, gained per three years, has helped me to ..." does not work. 'Per' means 'for every' or 'for each', so there has to be a group or set of things, and you are saying how much for each one individually. There are ten ...
why can't he have or has? - English Grammar - English - The Free ...
2011年5月15日 · Simply check the base form of the verb. Is it "to has" or "to have"? For instance, the verb is "to run". The form changes to "runs" for third person. He runs. But when using modals, the first form is used with even the third person. He has to run. He can run. He should run. and not He has to runs. He can runs. He should runs.
set or sets? - English Grammar - The Free Dictionary
2023年6月19日 · It set a new record = it happened It has set a new record = it still exists and has not been broken It sets a new record = telling you the story, and making the news sound up to date and current. The record is new.